The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 09, 2025
Filed:
May. 11, 2021
Applicant:
Stora Enso Oyj, Helsinki, FI;
Inventors:
Susanne Hansson, Tyresö, SE;
Raija Bådenlid, Karlstad, SE;
Assignee:
Stora Enso OYJ, Helsinki, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21H 21/16 (2006.01); D21H 19/38 (2006.01); D21H 19/46 (2006.01); D21H 19/58 (2006.01); D21H 19/60 (2006.01); D21H 27/30 (2006.01);
U.S. Cl.
CPC ...
D21H 21/16 (2013.01); D21H 19/385 (2013.01); D21H 19/46 (2013.01); D21H 19/58 (2013.01); D21H 19/60 (2013.01); D21H 27/30 (2013.01);
Abstract
The present invention relates to a water-resistant mineral-coated cellulose-based substrate, comprising a cellulose-based substrate, and a mineral-coating layer disposed on at least one surface of said substrate, said mineral coating comprising 50-95 wt % of a particulate mineral and 5-50 wt % of a water-dispersible binder based on the total dry weight of the mineral coating, and wherein said mineral-coating layer has been subjected to grafting with a fatty acid halide. The invention further relates to a method for manufacturing the water-resistant mineral-coated cellulose-based substrate.